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Table 1 Descriptive information on general characteristics of study subjects, and As exposure

From: Interplay of arsenic exposure and cigarette smoking on oxidative DNA damage in healthy males

Parameters

Overall

(n = 132)

Group (i)

(n = 33)

Group (ii)

(n = 33)

Group (iii)

(n = 33)

Group (iv)

(n = 33)

P-values

Age (years)

Median (IQR)

46 (35.25–55)

39 (28.5–55)

52 (44–57)

42 (34.5–59.5)

43 (36.5–52)

0.06a

Weight (kg)

Mean ± SD

76.6 ± 12.23

74.5 ± 10.4

76 ± 13.56

78.8 ± 9.86

77 ± 14.58

0.54a

BMI (kg/m2)

Mean ± SD

26.3 ± 3.64

25.5 ± 3.6

26.3 ± 3.8

27.2 ± 3.35

26.3 ± 3.8

0.31b

Education, n (%)

      

 Illiterate

18 (13.6)

4 (12.1)

8 (24.2)

5 (15)

1 (3)

0.03c, e

 Primary school

49 (37.1)

12 (36.3)

14 (42.2)

8 (24.2)

15 (45.4)

 Secondary school

41 (31)

10 (30.3)

8 (24.2)

8 (24.2)

15 (45.4)

 Diploma

18 (13.6)

5 (15)

2 (6)

10 (30.3)

1 (3)

 Bachelor or higher

6 (4.5)

2 (6)

1 (3)

2 (6)

1 (3)

Physical activity, n (%)

     

0.88c

 Low

64 (48.5)

13 (39.4)

17 (51.5)

17 (51.5)

17 (51.5)

 Moderate

52 (39.4)

16 (48.5)

13 (39.4)

12 (36.3)

11(33.3)

 High

16 (12.1)

4 (12.1)

3 (9)

4 (12.1)

5 (15.1)

Smoking duration (year)

Mean ± SD

–

–

20.63 ± 9.4

–

20.06 ± 7.46

0.78d

Cigarettes smoked per day

Mean ± SD

–

–

13.09 ± 6.6

–

15.03 ± 6.28

0.18d

Water consumption (L/day)

Median

1.5

1.3

1.8

1.4

1.6

0.17a

Arsenic intake

ADI (mg/kg/day)

Median (IQR)

5.7 × 10–4

(9 × 10–5-1.5 × 10–3)

8 × 10–5

(4.8 × 10–5-1 × 10–4)

1.2 × 10–4

(4.7 × 10–5-2.5 × 10–4)

1.1 × 10–3

(8.1 × 10–4-1.8 × 10–3)

1.5 × 10–3

(1.2 × 10–3-1.9 × 10–3)

0.001a, e > 

  1. aComparison between the groups was performed by Kruskal–Wallis tests
  2. bMean values were compared between the groups using ANOVA tests
  3. cχ2 test
  4. dComparison between two groups was performed by Mann–Whitney test
  5. eStatistically significant